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B2A Email Deliverability, MX, SPF & DMARC Verifier
B2A Email Deliverability, MX, SPF & DMARC Verifier is a paid API for AI agents from whale-momentum.agentdiet.dev, paid per call via MPP, $0.005/call, status unknown (last checked 2026-10-21).
Validates an email address for syntax correctness, disposable/burner provider status, role account detection, and live DNS MX, SPF, and DMARC record checks.
Price / call$0.005
Success—
StatusUnknown
How this service works
Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMARC records. (Live x402 v2, IETF MPP & MCP endpoint at https://whale-momentum.agentdiet.dev/v1/disposable-email)
Output
Returns a structured object indicating whether the email passes syntax validation, whether the domain belongs to a known disposable/burner email provider, whether the address is a role account (e.g. admin@, info@), and live DNS lookup results for the domain's MX, SPF, and DMARC records including their values and presence status.
Example use cases
Signup fraud prevention filter
“Before I create an account for this user, check if the email they gave me — tempuser@mailnator.com — is from a disposable or burner provider and whether it has working MX records. I want to block throwaway signups.”
CRM lead quality check
“I'm about to add leads@somestartup.io to our CRM — can you verify it's a real deliverable address, check if it's a role account, and confirm the domain has SPF and DMARC properly configured?”
Email campaign list hygiene
“Before we send our newsletter, check newsletter@bigcorp.com to make sure it's not a disposable address, has valid MX records so it can actually receive mail, and has SPF/DMARC set up — I don't want bounces or spam flags.”
Technical details
Endpoint
GEThttps://whale-momentum.agentdiet.dev/v1/disposable-email?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a single API call that combines email syntax checking, disposable/burner domain detection, role account flagging, and live DNS MX/SPF/DMARC record validation — rather than piecing together separate DNS lookup and blocklist tools. It is especially useful for signup fraud prevention, CRM data hygiene, or pre-send email campaign validation where deliverability and authenticity both matter. It is priced per-call at $0.005 USD via x402 micropayment, making it cost-effective for high-volume validation workflows.
Side effects
- Missing or malformed email parameter returns a validation error
- DNS lookup timeout if the email domain is unreachable or DNS is slow
- Unknown or very new domains may lack MX/SPF/DMARC records even if legitimate
- Disposable provider database may not include the most recently created burner services
- Payment failure (HTTP 402) if x402 micropayment is not honored by the calling agent
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| emailrequired | string | Email address to validate for syntax, MX deliverability, and disposable risk |
Output
Schema · Response
{
"type": "object"
}Reviews
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